Apparatus for regulating gas-ports.



PATENTED JAN. 8, 1907.

R. N. 'OAKM N, APPARATUS FOR REGULATING GAS PORTS.

APPLICATION FILED DBO. 8, 1905. I

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WITNESSES: a o

RICHARD N. OAKMAN, OF NEW YORK, N. Y.

APPARATUS FOR REGULATING GAS-PORTS- Specification of Letters Patent.

Patented Jan. 8, 1907.

Application filed December 8, 1906. Serial No. 290,900.

T0 at whom it may concern:

Be it known that I, RICHARD N. OAKMAN, a citizen of the United States,and a resident of the city, county, and State of New York, have inventeda new and useful Improvement in Apparatus for Regulating Gras- Ports, ofwhich the following is a full descri tion.

T 1e accompanying drawings illustrate the invention, of which Figure 1is a vertical section of'the device,

The standard is also provided with a gasthroughway 6, extending to aburner-tip 7. As shown in Fig. 1, the perforation 5 in the rotary plugstands in line with the throughway to the burner, and when this plug isrotated to the position shown in Fig. 2 the gas-ports of the throughway6 are closed.

Upon one end of the plug is shown a section of a pinion 8, and in thestandard, as shown in Fig. 3, is a bore 9 to accommodate a reciprocatingpiston 10. The piston is circular in form at its ends 11 and 12 to fillneatly the bore 9 and prevent the escape of air or pressure fluid aroundits periphery. Between the ends 11 and 12 the'piston is formed in theshape of a toothed rack, which meshes with the pinion. 8 and as thepiston reciprocates turns the pinion 8 and plug 4 to open and close theports of the gas passage-way 6. In the rear of the piston the standardis provided with an air-vent 13, extending from the rear end of the bore9. This vent allows the air in the bore to escape when the pistoncircuitWith the burner-tip 7, thereby causing a spark to ignite the gas whenthe passage-way to the burner is opened. A nozzle 17 is connected to theend of bore 9 to accommodate a tube or pipe leading to a device forsupplying fluid-pressure and creating an exhaust. this purpose willanswer. A cap 18 fits into the front opening of the standard.

The device operates as follows: Supposing the gas to be turned off, afluid-pressure entering the bore 9 through the nozzle 17 implels thepiston 10 to the other end of the bore 9, as shown in Fig. 3. The air inthe otherend of the bore escapes as the piston advances through the vent13. The action of the rack upon the pinion turns the plug until theperforation 5 tallies with the ports in the passage-way 6, leaving thepassageway for the gas clearto the burner. At the same time theelectrode 16 passes upon and over the burner-tip 7, making and breakingcircuit with the tip and causing a spark to ignite the gas. In thereverse movement the air is exhausted in the bore 9. The air enteringthe bore through vent 13, the piston returns to the other end of thebore, closing the passage-way and shutting off the flow of What i claimis In an apparatus for regulating gas-ports a standard provided with abore having a throughway for the passage of gas to a burner a nozzle forattachment to a source of gas-supply and a rotary plug-valve fitting thebore and perforated diametrically, in combination with a bore adapted toreceive a piston, a reciprocating piston carrying a rack within thebore, a pinion upon the end of the rotary valve, meshing with the rackon the iston, and a socket at the end of the pistonfiore for connectionwith a supply of fluid-pressure to reciprocate the piston.

In testimony whereof I, the said RICHARD N. OAKMAN, have signed my nameto this specification, in the presence of two subscribing witnesses,this 8th day of August,

RICHARD N. OAKMAN. Witnesses:

MARGARET TURNER, ALMA I. ALB ETsoN.

Any of the well-known devices for

